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&lt;&lt;they would receive a non-delivery report that will come from the sender that you specify.<br />
&gt;&gt;<br />
<br />
would the address of the Sender you specify, be fictitious, or real ?
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<<they would receive a non-delivery report that will come from the sender that you specify.
>>

would the address of the Sender you specify, be fictitious, or real ?

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Technodweeb:<br />
<br />
in that link you posted…there is a user sending a mail from Gmail to non existing user in the company, and they received NDR from Gmail.<br />
OK, so even if Exchange 2010 did not have that option : &quot;Specify the external postmaster address&quot;<br />
<br />
Gmail user will still receive NDR..
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Technodweeb:

in that link you posted…there is a user sending a mail from Gmail to non existing user in the company, and they received NDR from Gmail.
OK, so even if Exchange 2010 did not have that option : "Specify the external postmaster address"

Gmail user will still receive NDR..

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<div class="content wysiwyg-content">
In &nbsp;our environment we have the Transport settings as shown in the screen shot below.<br />
<br />
My concern is about the &quot;Specify the external postmaster address&quot; is left blank.<br />
<br />
what would be the impact ?<br />
<a href="https://filedb.experts-exchange.com/incoming/2013/11_w46/687919/Transport.jpg" target="_blank" title="transp (68 KB)"><img alt="transp" class="file-block lazyload" style="max-width: 768px;" data-src="https://filedb.experts-exchange.com/incoming/2013/11_w46/687919/Transport.jpg" /></a>
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Transport.jpg

In  our environment we have the Transport settings as shown in the screen shot below.

My concern is about the "Specify the external postmaster address" is left blank.

what would be the impact ?


Exchange 2010 Transport Settings

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.